If the pace is kept the same, with half a chapter once a year and considering there are around 15 chapters planned, there is a very high chance I will die of old age before I see this finished. That is not considering any rewrites and final edits, which can take years as well. Also, usually later chapters take much longer to write because there are more branches determined by variables chosen. And there's a big assumption here - that the author will keep interest in writing this for at least 3 more decades... So while I liked what I read, I'm not gonna get my hopes up of seeing this even half done.